Finding the Third Proportional to 16,399.13 and 35,390.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,399.13 : 35,390.25 = 35,390.25 : x
2. Step 2: Convert to fraction form
   16,399.13/35,390.25 = 35,390.25/x
3. Step 3: Cross multiply
   16,399.13x = 35,390.25 × 35,390.25
4. Step 4: Simplify right side
   16,399.13x = 1,252,469,795.06
5. Step 5: Solve for x
   x = 1,252,469,795.06/16,399.13
6. Step 6: Final answer
   x = 76,374.18